61742552301664 has 48 divisors (see below), whose sum is σ = 130916132453232. Its totient is φ = 28494375280128.

The previous prime is 61742552301659. The next prime is 61742552301691. The reversal of 61742552301664 is 46610325524716.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263739 + ... + 11115514.

It is an arithmetic number, because the mean of its divisors is an integer number (2727419426109).

Almost surely, 2^{61742552301664} is an apocalyptic number.

It is an amenable number.

61742552301664 is an abundant number, since it is smaller than the sum of its proper divisors (69173580151568).

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

61742552301664 is a wasteful number, since it uses less digits than its factorization.

61742552301664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11392319 (or 11392311 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 61742552301664 in words is "sixty-one trillion, seven hundred forty-two billion, five hundred fifty-two million, three hundred one thousand, six hundred sixty-four".