61520126466552 has 64 divisors (see below), whose sum is σ = 165632113920000. Its totient is φ = 18929154916224.

The previous prime is 61520126466521. The next prime is 61520126466683. The reversal of 61520126466552 is 25566462102516.

It is a junction number, because it is equal to n+sod(n) for n = 61520126466495 and 61520126466504.

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, 61151949 + ... + 62149827.

It is an arithmetic number, because the mean of its divisors is an integer number (2588001780000).

Almost surely, 2^{61520126466552} is an apocalyptic number.

It is an amenable number.

61520126466552 is an abundant number, since it is smaller than the sum of its proper divisors (104111987453448).

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

61520126466552 is a wasteful number, since it uses less digits than its factorization.

61520126466552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195500 (or 1195496 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 61520126466552 in words is "sixty-one trillion, five hundred twenty billion, one hundred twenty-six million, four hundred sixty-six thousand, five hundred fifty-two".