20151140004 has 36 divisors (see below), whose sum is σ = 53618532240. Its totient is φ = 6363517680.

The previous prime is 20151139933. The next prime is 20151140027. The reversal of 20151140004 is 40004115102.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14729682 + ... + 14731049.

Almost surely, 2^20151140004 is an apocalyptic number.

It is an amenable number.

20151140004 is an abundant number, since it is smaller than the sum of its proper divisors (33467392236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20151140004 is a wasteful number, since it uses less digits than its factorization.

20151140004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29460760 (or 29460755 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 20151140004 its reverse (40004115102), we get a palindrome (60155255106).

The spelling of 20151140004 in words is "twenty billion, one hundred fifty-one million, one hundred forty thousand, four".