642736901160 has 96 divisors (see below), whose sum is σ = 2089759875840. Its totient is φ = 171325537152.

The previous prime is 642736901129. The next prime is 642736901231. The reversal of 642736901160 is 61109637246.

642736901160 is a `hidden beast` number, since 6 + 427 + 3 + 69 + 0 + 1 + 160 = 666.

It is a super-2 number, since 2×642736901160² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 503857 + ... + 1240703.

It is an arithmetic number, because the mean of its divisors is an integer number (21768332040).

Almost surely, 2^642736901160 is an apocalyptic number.

642736901160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

642736901160 is an abundant number, since it is smaller than the sum of its proper divisors (1447022974680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

642736901160 is a wasteful number, since it uses less digits than its factorization.

642736901160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739287 (or 739280 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 642736901160 in words is "six hundred forty-two billion, seven hundred thirty-six million, nine hundred one thousand, one hundred sixty".