20514023551 has 8 divisors (see below), whose sum is σ = 23549732864. Its totient is φ = 17504597880.

The previous prime is 20514023501. The next prime is 20514023561. The reversal of 20514023551 is 15532041502.

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

It is not a de Polignac number, because 20514023551 - 2¹¹ = 20514021503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514023501) 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, 6569235 + ... + 6572356.

It is an arithmetic number, because the mean of its divisors is an integer number (2943716608).

Almost surely, 2^20514023551 is an apocalyptic number.

20514023551 is a deficient number, since it is larger than the sum of its proper divisors (3035709313).

20514023551 is a wasteful number, since it uses less digits than its factorization.

20514023551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13141821.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 20514023551 in words is "twenty billion, five hundred fourteen million, twenty-three thousand, five hundred fifty-one".