20366137461 has 8 divisors (see below), whose sum is σ = 27156897184. Its totient is φ = 13576401360.

The previous prime is 20366137457. The next prime is 20366137471. The reversal of 20366137461 is 16473166302.

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

It is not a de Polignac number, because 20366137461 - 2² = 20366137457 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 (20366137471) 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, 208210 + ... + 289971.

It is an arithmetic number, because the mean of its divisors is an integer number (3394612148).

Almost surely, 2^20366137461 is an apocalyptic number.

It is an amenable number.

20366137461 is a deficient number, since it is larger than the sum of its proper divisors (6790759723).

20366137461 is a wasteful number, since it uses less digits than its factorization.

20366137461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511811.

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 20366137461 in words is "twenty billion, three hundred sixty-six million, one hundred thirty-seven thousand, four hundred sixty-one".