10642561605445 has 48 divisors (see below), whose sum is σ = 16255670279616. Its totient is φ = 6614280288000.

The previous prime is 10642561605419. The next prime is 10642561605451. The reversal of 10642561605445 is 54450616524601.

It is not a de Polignac number, because 10642561605445 - 2⁵ = 10642561605413 is a prime.

It is a super-2 number, since 2×10642561605445² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5073216 + ... + 6857305.

It is an arithmetic number, because the mean of its divisors is an integer number (338659797492).

Almost surely, 2^{10642561605445} is an apocalyptic number.

It is an amenable number.

10642561605445 is a deficient number, since it is larger than the sum of its proper divisors (5613108674171).

10642561605445 is a wasteful number, since it uses less digits than its factorization.

10642561605445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11930882 (or 11930875 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 49.

The spelling of 10642561605445 in words is "ten trillion, six hundred forty-two billion, five hundred sixty-one million, six hundred five thousand, four hundred forty-five".