10641350640 has 80 divisors (see below), whose sum is σ = 33016199328. Its totient is φ = 2835283968.

The previous prime is 10641350579. The next prime is 10641350669. The reversal of 10641350640 is 4605314601.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×10641350640² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 10641350598 and 10641350607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273864 + ... + 310296.

Almost surely, 2^10641350640 is an apocalyptic number.

10641350640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10641350640 is an abundant number, since it is smaller than the sum of its proper divisors (22374848688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10641350640 is a wasteful number, since it uses less digits than its factorization.

10641350640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37666 (or 37660 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 10641350640 in words is "ten billion, six hundred forty-one million, three hundred fifty thousand, six hundred forty".