20312621601 has 8 divisors (see below), whose sum is σ = 27815481984. Its totient is φ = 13175754480.

The previous prime is 20312621597. The next prime is 20312621611. The reversal of 20312621601 is 10612621302.

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

It is not a de Polignac number, because 20312621601 - 2² = 20312621597 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20312621611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91498185 + ... + 91498406.

It is an arithmetic number, because the mean of its divisors is an integer number (3476935248).

Almost surely, 2^20312621601 is an apocalyptic number.

It is an amenable number.

20312621601 is a deficient number, since it is larger than the sum of its proper divisors (7502860383).

20312621601 is a wasteful number, since it uses less digits than its factorization.

20312621601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182996631.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 20312621601 in words is "twenty billion, three hundred twelve million, six hundred twenty-one thousand, six hundred one".