11651505650010 has 24 divisors (see below), whose sum is σ = 30293914690260. Its totient is φ = 3107068173312.

The previous prime is 11651505649967. The next prime is 11651505650011. The reversal of 11651505650010 is 1005650515611.

It is a happy number.

11651505650010 is a `hidden beast` number, since 1 + 1 + 6 + 51 + 50 + 56 + 500 + 1 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11651361001281 + 144648729 = 3413409^2 + 12027^2 .

It is a super-2 number, since 2×11651505650010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11651505650011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64730586855 + ... + 64730587034.

Almost surely, 2^{11651505650010} is an apocalyptic number.

11651505650010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11651505650010 is an abundant number, since it is smaller than the sum of its proper divisors (18642409040250).

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

11651505650010 is a wasteful number, since it uses less digits than its factorization.

11651505650010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129461173902 (or 129461173899 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 11651505650010 in words is "eleven trillion, six hundred fifty-one billion, five hundred five million, six hundred fifty thousand, ten".