61356355504 has 20 divisors (see below), whose sum is σ = 119161670040. Its totient is φ = 30604956800.

The previous prime is 61356355499. The next prime is 61356355507. The reversal of 61356355504 is 40555365316.

It is a super-3 number, since 3×61356355504³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (61356355507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4569397 + ... + 4582804.

It is an arithmetic number, because the mean of its divisors is an integer number (5958083502).

Almost surely, 2^61356355504 is an apocalyptic number.

It is an amenable number.

61356355504 is a deficient number, since it is larger than the sum of its proper divisors (57805314536).

61356355504 is a wasteful number, since it uses less digits than its factorization.

61356355504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9152628 (or 9152622 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 43.

The spelling of 61356355504 in words is "sixty-one billion, three hundred fifty-six million, three hundred fifty-five thousand, five hundred four".