20137061845 has 8 divisors (see below), whose sum is σ = 24242175360. Its totient is φ = 16057848720.

The previous prime is 20137061807. The next prime is 20137061863. The reversal of 20137061845 is 54816073102.

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

It is not a de Polignac number, because 20137061845 - 2¹³ = 20137053653 is a prime.

It is a congruent number.

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, 6473385 + ... + 6476494.

It is an arithmetic number, because the mean of its divisors is an integer number (3030271920).

Almost surely, 2^20137061845 is an apocalyptic number.

It is an amenable number.

20137061845 is a deficient number, since it is larger than the sum of its proper divisors (4105113515).

20137061845 is a wasteful number, since it uses less digits than its factorization.

20137061845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12950195.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 20137061845 in words is "twenty billion, one hundred thirty-seven million, sixty-one thousand, eight hundred forty-five".