20152540514 has 8 divisors (see below), whose sum is σ = 30229451868. Its totient is φ = 10076056560.

The previous prime is 20152540501. The next prime is 20152540553. The reversal of 20152540514 is 41504525102.

It can be written as a sum of positive squares in 2 ways, for example, as 17162310025 + 2990230489 = 131005^2 + 54683^2 .

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

It is a super-2 number, since 2×20152540514² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68744 + ... + 212204.

Almost surely, 2^20152540514 is an apocalyptic number.

20152540514 is a deficient number, since it is larger than the sum of its proper divisors (10076911354).

20152540514 is a wasteful number, since it uses less digits than its factorization.

20152540514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213700.

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 20152540514 in words is "twenty billion, one hundred fifty-two million, five hundred forty thousand, five hundred fourteen".