15400145236655 has 16 divisors (see below), whose sum is σ = 18935865643968. Its totient is φ = 12016479264000.

The previous prime is 15400145236643. The next prime is 15400145236699. The reversal of 15400145236655 is 55663254100451.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-15400145236655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9046931 + ... + 10613540.

It is an arithmetic number, because the mean of its divisors is an integer number (1183491602748).

Almost surely, 2^{15400145236655} is an apocalyptic number.

15400145236655 is a deficient number, since it is larger than the sum of its proper divisors (3535720407313).

15400145236655 is a wasteful number, since it uses less digits than its factorization.

15400145236655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19664338.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 15400145236655 in words is "fifteen trillion, four hundred billion, one hundred forty-five million, two hundred thirty-six thousand, six hundred fifty-five".