20315124465104 has 160 divisors (see below), whose sum is σ = 45999418515456. Its totient is φ = 8512047751680.

The previous prime is 20315124465079. The next prime is 20315124465113. The reversal of 20315124465104 is 40156442151302.

It is a super-2 number, since 2×20315124465104² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 553874414 + ... + 553911090.

Almost surely, 2^{20315124465104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20315124465104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22999709257728).

20315124465104 is an abundant number, since it is smaller than the sum of its proper divisors (25684294050352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20315124465104 is a wasteful number, since it uses less digits than its factorization.

20315124465104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37313 (or 37307 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 20315124465104 in words is "twenty trillion, three hundred fifteen billion, one hundred twenty-four million, four hundred sixty-five thousand, one hundred four".