10645451510421 has 32 divisors (see below), whose sum is σ = 17497144526848. Its totient is φ = 5606284259520.

The previous prime is 10645451510417. The next prime is 10645451510489. The reversal of 10645451510421 is 12401515454601.

It is a happy number.

10645451510421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10645451510421 - 2² = 10645451510417 is a prime.

It is a super-2 number, since 2×10645451510421² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 10645451510421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645451511421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30726571 + ... + 31071096.

It is an arithmetic number, because the mean of its divisors is an integer number (546785766464).

Almost surely, 2^{10645451510421} is an apocalyptic number.

It is an amenable number.

10645451510421 is a deficient number, since it is larger than the sum of its proper divisors (6851693016427).

10645451510421 is a wasteful number, since it uses less digits than its factorization.

10645451510421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61798321.

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 10645451510421 in words is "ten trillion, six hundred forty-five billion, four hundred fifty-one million, five hundred ten thousand, four hundred twenty-one".