20151744332 has 6 divisors (see below), whose sum is σ = 35265552588. Its totient is φ = 10075872164.

The previous prime is 20151744329. The next prime is 20151744367. The reversal of 20151744332 is 23344715102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2518968038 + ... + 2518968045.

It is an arithmetic number, because the mean of its divisors is an integer number (5877592098).

Almost surely, 2^20151744332 is an apocalyptic number.

It is an amenable number.

20151744332 is a deficient number, since it is larger than the sum of its proper divisors (15113808256).

20151744332 is a wasteful number, since it uses less digits than its factorization.

20151744332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037936087 (or 5037936085 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 20151744332 in words is "twenty billion, one hundred fifty-one million, seven hundred forty-four thousand, three hundred thirty-two".