20314615651512 has 384 divisors, whose sum is σ = 66997717920000. Its totient is φ = 5073711519744.

The previous prime is 20314615651501. The next prime is 20314615651529. The reversal of 20314615651512 is 21515651641302.

It is a super-2 number, since 2×20314615651512² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 818828164 + ... + 818852972.

It is an arithmetic number, because the mean of its divisors is an integer number (174473223750).

Almost surely, 2^{20314615651512} 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 20314615651512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33498858960000).

20314615651512 is an abundant number, since it is smaller than the sum of its proper divisors (46683102268488).

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

20314615651512 is a wasteful number, since it uses less digits than its factorization.

20314615651512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27683 (or 27672 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 20314615651512 in words is "twenty trillion, three hundred fourteen billion, six hundred fifteen million, six hundred fifty-one thousand, five hundred twelve".