221657273336040 has 64 divisors (see below), whose sum is σ = 666597668126400. Its totient is φ = 58964086390272.

The previous prime is 221657273335969. The next prime is 221657273336087. The reversal of 221657273336040 is 40633372756122.

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, 2258073102 + ... + 2258171261.

It is an arithmetic number, because the mean of its divisors is an integer number (10415588564475).

Almost surely, 2^{221657273336040} is an apocalyptic number.

221657273336040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221657273336040 is an abundant number, since it is smaller than the sum of its proper divisors (444940394790360).

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

221657273336040 is a wasteful number, since it uses less digits than its factorization.

221657273336040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516244786 (or 4516244782 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 51.

The spelling of 221657273336040 in words is "two hundred twenty-one trillion, six hundred fifty-seven billion, two hundred seventy-three million, three hundred thirty-six thousand, forty".