20101631744 has 36 divisors (see below), whose sum is σ = 41057897496. Its totient is φ = 9817070592.

The previous prime is 20101631731. The next prime is 20101631777. The reversal of 20101631744 is 44713610102.

It is a happy number.

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, 902039 + ... + 924054.

Almost surely, 2^20101631744 is an apocalyptic number.

It is an amenable number.

20101631744 is an abundant number, since it is smaller than the sum of its proper divisors (20956265752).

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

20101631744 is an equidigital number, since it uses as much as digits as its factorization.

20101631744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826152 (or 1826138 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 20101631744 in words is "twenty billion, one hundred one million, six hundred thirty-one thousand, seven hundred forty-four".