20752690151 has 4 divisors (see below), whose sum is σ = 20757323832. Its totient is φ = 20748056472.

The previous prime is 20752690139. The next prime is 20752690219. The reversal of 20752690151 is 15109625702.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20752690151 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 (20752600151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2310116 + ... + 2319081.

It is an arithmetic number, because the mean of its divisors is an integer number (5189330958).

Almost surely, 2^20752690151 is an apocalyptic number.

20752690151 is a deficient number, since it is larger than the sum of its proper divisors (4633681).

20752690151 is an equidigital number, since it uses as much as digits as its factorization.

20752690151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633680.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 20752690151 in words is "twenty billion, seven hundred fifty-two million, six hundred ninety thousand, one hundred fifty-one".