61337221104 has 40 divisors (see below), whose sum is σ = 160819488640. Its totient is φ = 20140579008.

The previous prime is 61337221097. The next prime is 61337221157. The reversal of 61337221104 is 40112273316.

It is a happy number.

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, 9533044 + ... + 9539475.

It is an arithmetic number, because the mean of its divisors is an integer number (4020487216).

Almost surely, 2^61337221104 is an apocalyptic number.

It is an amenable number.

61337221104 is an abundant number, since it is smaller than the sum of its proper divisors (99482267536).

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

61337221104 is a wasteful number, since it uses less digits than its factorization.

61337221104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19072597 (or 19072591 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 61337221104 in words is "sixty-one billion, three hundred thirty-seven million, two hundred twenty-one thousand, one hundred four".