15135212232465 has 128 divisors (see below), whose sum is σ = 27645137049600. Its totient is φ = 7016562524160.

The previous prime is 15135212232461. The next prime is 15135212232473. The reversal of 15135212232465 is 56423221253151.

It is not a de Polignac number, because 15135212232465 - 2² = 15135212232461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15135212232461) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 908631417 + ... + 908648073.

It is an arithmetic number, because the mean of its divisors is an integer number (215977633200).

Almost surely, 2^{15135212232465} is an apocalyptic number.

15135212232465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15135212232465 is a deficient number, since it is larger than the sum of its proper divisors (12509924817135).

15135212232465 is a wasteful number, since it uses less digits than its factorization.

15135212232465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20667.

The product of its digits is 432000, while the sum is 42.

The spelling of 15135212232465 in words is "fifteen trillion, one hundred thirty-five billion, two hundred twelve million, two hundred thirty-two thousand, four hundred sixty-five".