21364767101554 has 16 divisors (see below), whose sum is σ = 33186619607040. Its totient is φ = 10304762438880.

The previous prime is 21364767101549. The next prime is 21364767101563. The reversal of 21364767101554 is 45510176746312.

It is a super-2 number, since 2×21364767101554² (a number of 27 digits) contains 22 as substring.

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, 550448674 + ... + 550487485.

It is an arithmetic number, because the mean of its divisors is an integer number (2074163725440).

Almost surely, 2^{21364767101554} is an apocalyptic number.

21364767101554 is a deficient number, since it is larger than the sum of its proper divisors (11821852505486).

21364767101554 is a wasteful number, since it uses less digits than its factorization.

21364767101554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100936505.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 21364767101554 in words is "twenty-one trillion, three hundred sixty-four billion, seven hundred sixty-seven million, one hundred one thousand, five hundred fifty-four".