21163316150601 has 12 divisors (see below), whose sum is σ = 31087357058160. Its totient is φ = 13869743917560.

The previous prime is 21163316150597. The next prime is 21163316150609. The reversal of 21163316150601 is 10605161336112.

21163316150601 is a `hidden beast` number, since 2 + 1 + 1 + 6 + 3 + 31 + 6 + 15 + 0 + 601 = 666.

It is not a de Polignac number, because 21163316150601 - 2² = 21163316150597 is a prime.

It is a super-2 number, since 2×21163316150601² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21163316150609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19927792455 + ... + 19927793516.

It is an arithmetic number, because the mean of its divisors is an integer number (2590613088180).

Almost surely, 2^{21163316150601} is an apocalyptic number.

It is an amenable number.

21163316150601 is a deficient number, since it is larger than the sum of its proper divisors (9924040907559).

21163316150601 is a wasteful number, since it uses less digits than its factorization.

21163316150601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39855586036 (or 39855586033 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

Adding to 21163316150601 its reverse (10605161336112), we get a palindrome (31768477486713).

The spelling of 21163316150601 in words is "twenty-one trillion, one hundred sixty-three billion, three hundred sixteen million, one hundred fifty thousand, six hundred one".