2152644630705 has 32 divisors (see below), whose sum is σ = 3834913305600. Its totient is φ = 1145680281216.

The previous prime is 2152644630673. The next prime is 2152644630743. The reversal of 2152644630705 is 5070364462512.

2152644630705 is a `hidden beast` number, since 2 + 1 + 5 + 2 + 6 + 4 + 4 + 630 + 7 + 0 + 5 = 666.

It is not a de Polignac number, because 2152644630705 - 2⁵ = 2152644630673 is a prime.

It is a super-2 number, since 2×2152644630705² (a number of 25 digits) contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16579924 + ... + 16709253.

It is an arithmetic number, because the mean of its divisors is an integer number (119841040800).

Almost surely, 2^{2152644630705} is an apocalyptic number.

It is an amenable number.

2152644630705 is a deficient number, since it is larger than the sum of its proper divisors (1682268674895).

2152644630705 is a wasteful number, since it uses less digits than its factorization.

2152644630705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33289670 (or 33289664 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 2152644630705 in words is "two trillion, one hundred fifty-two billion, six hundred forty-four million, six hundred thirty thousand, seven hundred five".