10645440632415 has 24 divisors (see below), whose sum is σ = 18457833156048. Its totient is φ = 5675803395840.

The previous prime is 10645440632399. The next prime is 10645440632417. The reversal of 10645440632415 is 51423604454601.

10645440632415 is a `hidden beast` number, since 1 + 0 + 6 + 4 + 5 + 4 + 4 + 0 + 632 + 4 + 1 + 5 = 666.

It is not a de Polignac number, because 10645440632415 - 2⁴ = 10645440632399 is a prime.

It is a super-2 number, since 2×10645440632415² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645440632417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36623241 + ... + 36912770.

It is an arithmetic number, because the mean of its divisors is an integer number (769076381502).

Almost surely, 2^{10645440632415} is an apocalyptic number.

10645440632415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10645440632415 is a deficient number, since it is larger than the sum of its proper divisors (7812392523633).

10645440632415 is a wasteful number, since it uses less digits than its factorization.

10645440632415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73539239 (or 73539236 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 10645440632415 in words is "ten trillion, six hundred forty-five billion, four hundred forty million, six hundred thirty-two thousand, four hundred fifteen".