20177621313 has 8 divisors (see below), whose sum is σ = 26904851328. Its totient is φ = 13451069424.

The previous prime is 20177621287. The next prime is 20177621323. The reversal of 20177621313 is 31312677102.

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

It is not a de Polignac number, because 20177621313 - 2³² = 15882654017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20177621323) 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, 95481 + ... + 222422.

It is an arithmetic number, because the mean of its divisors is an integer number (3363106416).

Almost surely, 2^20177621313 is an apocalyptic number.

It is an amenable number.

20177621313 is a deficient number, since it is larger than the sum of its proper divisors (6727230015).

20177621313 is a wasteful number, since it uses less digits than its factorization.

20177621313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339063.

The product of its (nonzero) digits is 10584, while the sum is 33.

The spelling of 20177621313 in words is "twenty billion, one hundred seventy-seven million, six hundred twenty-one thousand, three hundred thirteen".