61545662136030 has 64 divisors (see below), whose sum is σ = 149495909741568. Its totient is φ = 16214630530560.

The previous prime is 61545662135933. The next prime is 61545662136067. The reversal of 61545662136030 is 3063126654516.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28133914 + ... + 30242493.

It is an arithmetic number, because the mean of its divisors is an integer number (2335873589712).

Almost surely, 2^{61545662136030} is an apocalyptic number.

61545662136030 is an abundant number, since it is smaller than the sum of its proper divisors (87950247605538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61545662136030 is a wasteful number, since it uses less digits than its factorization.

61545662136030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58376841.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 61545662136030 in words is "sixty-one trillion, five hundred forty-five billion, six hundred sixty-two million, one hundred thirty-six thousand, thirty".