20142551004 has 12 divisors (see below), whose sum is σ = 46999285704. Its totient is φ = 6714183664.

The previous prime is 20142550993. The next prime is 20142551029. The reversal of 20142551004 is 40015524102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 839272947 + ... + 839272970.

It is an arithmetic number, because the mean of its divisors is an integer number (3916607142).

Almost surely, 2^20142551004 is an apocalyptic number.

It is an amenable number.

20142551004 is an abundant number, since it is smaller than the sum of its proper divisors (26856734700).

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

20142551004 is a wasteful number, since it uses less digits than its factorization.

20142551004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678545924 (or 1678545922 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 20142551004 in words is "twenty billion, one hundred forty-two million, five hundred fifty-one thousand, four".