11532531651 has 8 divisors (see below), whose sum is σ = 15377500944. Its totient is φ = 7687958400.

The previous prime is 11532531649. The next prime is 11532531653. The reversal of 11532531651 is 15613523511.

It is an interprime number because it is at equal distance from previous prime (11532531649) and next prime (11532531653).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11532531651 - 2¹ = 11532531649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11532531653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22650 + ... + 153551.

It is an arithmetic number, because the mean of its divisors is an integer number (1922187618).

Almost surely, 2^11532531651 is an apocalyptic number.

11532531651 is a deficient number, since it is larger than the sum of its proper divisors (3844969293).

11532531651 is a wasteful number, since it uses less digits than its factorization.

11532531651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198021.

The product of its digits is 13500, while the sum is 33.

The spelling of 11532531651 in words is "eleven billion, five hundred thirty-two million, five hundred thirty-one thousand, six hundred fifty-one".