21115662150330 has 48 divisors (see below), whose sum is σ = 59891696283744. Its totient is φ = 5118948399840.

The previous prime is 21115662150307. The next prime is 21115662150343. The reversal of 21115662150330 is 3305126651112.

21115662150330 is a `hidden beast` number, since 2 + 1 + 11 + 56 + 62 + 1 + 503 + 30 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10664474844 + ... + 10664476823.

It is an arithmetic number, because the mean of its divisors is an integer number (1247743672578).

Almost surely, 2^{21115662150330} is an apocalyptic number.

21115662150330 is an abundant number, since it is smaller than the sum of its proper divisors (38776034133414).

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

21115662150330 is a wasteful number, since it uses less digits than its factorization.

21115662150330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21328951691 (or 21328951688 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 21115662150330 in words is "twenty-one trillion, one hundred fifteen billion, six hundred sixty-two million, one hundred fifty thousand, three hundred thirty".