11626542501 has 16 divisors (see below), whose sum is σ = 17915702400. Its totient is φ = 6569088768.

The previous prime is 11626542479. The next prime is 11626542553. The reversal of 11626542501 is 10524562611.

It is not a de Polignac number, because 11626542501 - 2⁷ = 11626542373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11626546501) 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, 3108496 + ... + 3112233.

It is an arithmetic number, because the mean of its divisors is an integer number (1119731400).

Almost surely, 2^11626542501 is an apocalyptic number.

It is an amenable number.

11626542501 is a deficient number, since it is larger than the sum of its proper divisors (6289159899).

11626542501 is an equidigital number, since it uses as much as digits as its factorization.

11626542501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220828.

The product of its (nonzero) digits is 14400, while the sum is 33.

It can be divided in two parts, 116265 and 42501, that added together give a triangular number (158766 = T₅₆₃).

The spelling of 11626542501 in words is "eleven billion, six hundred twenty-six million, five hundred forty-two thousand, five hundred one".