20514477151 has 12 divisors (see below), whose sum is σ = 23866504200. Its totient is φ = 17581830000.

The previous prime is 20514477131. The next prime is 20514477157. The reversal of 20514477151 is 15177441502.

It is not a de Polignac number, because 20514477151 - 2⁵ = 20514477119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20514477151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514477157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547776 + ... + 584026.

It is an arithmetic number, because the mean of its divisors is an integer number (1988875350).

Almost surely, 2^20514477151 is an apocalyptic number.

20514477151 is a deficient number, since it is larger than the sum of its proper divisors (3352027049).

20514477151 is a wasteful number, since it uses less digits than its factorization.

20514477151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47814 (or 47807 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 37.

The spelling of 20514477151 in words is "twenty billion, five hundred fourteen million, four hundred seventy-seven thousand, one hundred fifty-one".