61532310153155 has 32 divisors (see below), whose sum is σ = 75870848102400. Its totient is φ = 47884812988032.

The previous prime is 61532310153121. The next prime is 61532310153163. The reversal of 61532310153155 is 55135101323516.

It is a de Polignac number, because none of the positive numbers 2^k-61532310153155 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24681206 + ... + 27059684.

It is an arithmetic number, because the mean of its divisors is an integer number (2370964003200).

Almost surely, 2^{61532310153155} is an apocalyptic number.

61532310153155 is a deficient number, since it is larger than the sum of its proper divisors (14338537949245).

61532310153155 is a wasteful number, since it uses less digits than its factorization.

61532310153155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379203.

The product of its (nonzero) digits is 202500, while the sum is 41.

The spelling of 61532310153155 in words is "sixty-one trillion, five hundred thirty-two billion, three hundred ten million, one hundred fifty-three thousand, one hundred fifty-five".