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1663165490 = 25799723831
BaseRepresentation
bin110001100100001…
…1110010000110010
311021220112120010212
41203020132100302
511401232243430
6433011224122
756133446660
oct14310362062
94256476125
101663165490
117838a4938
123a4ba8042
132067507bc
1411ac57c30
159b029b95
hex6321e432

1663165490 has 32 divisors (see below), whose sum is σ = 3424944384. Its totient is φ = 569632320.

The previous prime is 1663165459. The next prime is 1663165523. The reversal of 1663165490 is 945613661.

It is a super-2 number, since 2×16631654902 = 5532238894253880200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57875 + ... + 81705.

It is an arithmetic number, because the mean of its divisors is an integer number (107029512).

Almost surely, 21663165490 is an apocalyptic number.

1663165490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1663165490 is an abundant number, since it is smaller than the sum of its proper divisors (1761778894).

1663165490 is a wasteful number, since it uses less digits than its factorization.

1663165490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24842.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 1663165490 is about 40781.9260212168. The cubic root of 1663165490 is about 1184.8002986778.

The spelling of 1663165490 in words is "one billion, six hundred sixty-three million, one hundred sixty-five thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 997 1994 4985 6979 9970 13958 23831 34895 47662 69790 119155 166817 238310 333634 834085 1668170 23759507 47519014 118797535 166316549 237595070 332633098 831582745 1663165490