21506700601037 has 8 divisors (see below), whose sum is σ = 22364794275840. Its totient is φ = 20656372480240.

The previous prime is 21506700600989. The next prime is 21506700601049. The reversal of 21506700601037 is 73010600760512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21506700601037 - 2³⁴ = 21489520731853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21506780601037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1941382853 + ... + 1941393930.

It is an arithmetic number, because the mean of its divisors is an integer number (2795599284480).

Almost surely, 2^{21506700601037} is an apocalyptic number.

It is an amenable number.

21506700601037 is a deficient number, since it is larger than the sum of its proper divisors (858093674803).

21506700601037 is a wasteful number, since it uses less digits than its factorization.

21506700601037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882777003.

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 21506700601037 in words is "twenty-one trillion, five hundred six billion, seven hundred million, six hundred one thousand, thirty-seven".