61657242522 has 16 divisors (see below), whose sum is σ = 123316918560. Its totient is φ = 20552008592.

The previous prime is 61657242499. The next prime is 61657242527. The reversal of 61657242522 is 22524275616.

It is not an unprimeable number, because it can be changed into a prime (61657242527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543229 + ... + 646847.

It is an arithmetic number, because the mean of its divisors is an integer number (7707307410).

Almost surely, 2^61657242522 is an apocalyptic number.

61657242522 is an abundant number, since it is smaller than the sum of its proper divisors (61659676038).

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

61657242522 is a wasteful number, since it uses less digits than its factorization.

61657242522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202797.

The product of its digits is 403200, while the sum is 42.

The spelling of 61657242522 in words is "sixty-one billion, six hundred fifty-seven million, two hundred forty-two thousand, five hundred twenty-two".