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2155652200465 = 51663259248611
BaseRepresentation
bin11111010111100110111…
…000100011100000010001
321122002010002220220020121
4133113212320203200101
5240304233430403330
64330143135510241
7311512033243621
oct37274670434021
97562102826217
102155652200465
11761230518895
122a9943688381
1312837ab16b3a
1476496b96881
153b117de317a
hex1f5e6e23811

2155652200465 has 8 divisors (see below), whose sum is σ = 2588338142208. Its totient is φ = 1723484759280.

The previous prime is 2155652200451. The next prime is 2155652200469. The reversal of 2155652200465 is 5640022565512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2155652200465 - 213 = 2155652192273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155652200469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129615991 + ... + 129632620.

It is an arithmetic number, because the mean of its divisors is an integer number (323542267776).

Almost surely, 22155652200465 is an apocalyptic number.

It is an amenable number.

2155652200465 is a deficient number, since it is larger than the sum of its proper divisors (432685941743).

2155652200465 is a wasteful number, since it uses less digits than its factorization.

2155652200465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259250279.

The product of its (nonzero) digits is 720000, while the sum is 43.

Adding to 2155652200465 its reverse (5640022565512), we get a palindrome (7795674765977).

The spelling of 2155652200465 in words is "two trillion, one hundred fifty-five billion, six hundred fifty-two million, two hundred thousand, four hundred sixty-five".

Divisors: 1 5 1663 8315 259248611 1296243055 431130440093 2155652200465