9999261646010 has 128 divisors (see below), whose sum is σ = 23574351144960. Its totient is φ = 2963328528384.

The previous prime is 9999261645983. The next prime is 9999261646019. The reversal of 9999261646010 is 106461629999.

It is a super-2 number, since 2×9999261646010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9999261646019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1407071 + ... + 4688109.

It is an arithmetic number, because the mean of its divisors is an integer number (184174618320).

Almost surely, 2^{9999261646010} is an apocalyptic number.

9999261646010 is an abundant number, since it is smaller than the sum of its proper divisors (13575089498950).

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

9999261646010 is a wasteful number, since it uses less digits than its factorization.

9999261646010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281280.

The product of its (nonzero) digits is 11337408, while the sum is 62.

The spelling of 9999261646010 in words is "nine trillion, nine hundred ninety-nine billion, two hundred sixty-one million, six hundred forty-six thousand, ten".