11101651641 has 16 divisors (see below), whose sum is σ = 16450902720. Its totient is φ = 7399296000.

The previous prime is 11101651609. The next prime is 11101651667. The reversal of 11101651641 is 14615610111.

11101651641 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 1 + 651 + 6 + 4 + 1 = 666.

It is not a de Polignac number, because 11101651641 - 2⁵ = 11101651609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11101651601) 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, 67641 + ... + 163641.

It is an arithmetic number, because the mean of its divisors is an integer number (1028181420).

Almost surely, 2^11101651641 is an apocalyptic number.

It is an amenable number.

11101651641 is a deficient number, since it is larger than the sum of its proper divisors (5349251079).

11101651641 is an equidigital number, since it uses as much as digits as its factorization.

11101651641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100293 (or 100287 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The spelling of 11101651641 in words is "eleven billion, one hundred one million, six hundred fifty-one thousand, six hundred forty-one".