221461357660760 has 64 divisors (see below), whose sum is σ = 577492795883520. Its totient is φ = 74860177230720.

The previous prime is 221461357660757. The next prime is 221461357660789. The reversal of 221461357660760 is 67066753164122.

It is a happy number.

221461357660760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 221461357660696 and 221461357660705.

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, 5569933784 + ... + 5569973543.

It is an arithmetic number, because the mean of its divisors is an integer number (9023324935680).

Almost surely, 2^{221461357660760} is an apocalyptic number.

221461357660760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221461357660760 is an abundant number, since it is smaller than the sum of its proper divisors (356031438222760).

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

221461357660760 is a wasteful number, since it uses less digits than its factorization.

221461357660760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11139907416 (or 11139907412 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 56.

The spelling of 221461357660760 in words is "two hundred twenty-one trillion, four hundred sixty-one billion, three hundred fifty-seven million, six hundred sixty thousand, seven hundred sixty".