20152551005 has 16 divisors (see below), whose sum is σ = 24428926080. Its totient is φ = 15958273728.

The previous prime is 20152550993. The next prime is 20152551019. The reversal of 20152551005 is 50015525102.

It is a cyclic number.

It is not a de Polignac number, because 20152551005 - 2⁴ = 20152550989 is a prime.

It is a super-2 number, since 2×20152551005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1320599 + ... + 1335771.

It is an arithmetic number, because the mean of its divisors is an integer number (1526807880).

Almost surely, 2^20152551005 is an apocalyptic number.

It is an amenable number.

20152551005 is a deficient number, since it is larger than the sum of its proper divisors (4276375075).

20152551005 is a wasteful number, since it uses less digits than its factorization.

20152551005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17860.

The product of its (nonzero) digits is 2500, while the sum is 26.

The spelling of 20152551005 in words is "twenty billion, one hundred fifty-two million, five hundred fifty-one thousand, five".