10264551661 has 16 divisors (see below), whose sum is σ = 12639445504. Its totient is φ = 8117449344.

The previous prime is 10264551643. The next prime is 10264551673. The reversal of 10264551661 is 16615546201.

It is a cyclic number.

It is not a de Polignac number, because 10264551661 - 2²⁵ = 10230997229 is a prime.

It is a super-2 number, since 2×10264551661² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10264551661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10264551641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168076 + ... + 220858.

It is an arithmetic number, because the mean of its divisors is an integer number (789965344).

Almost surely, 2^10264551661 is an apocalyptic number.

It is an amenable number.

10264551661 is a deficient number, since it is larger than the sum of its proper divisors (2374893843).

10264551661 is a wasteful number, since it uses less digits than its factorization.

10264551661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54940.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 10264551661 in words is "ten billion, two hundred sixty-four million, five hundred fifty-one thousand, six hundred sixty-one".