20435631532 has 24 divisors (see below), whose sum is σ = 35940021264. Its totient is φ = 10167140352.

The previous prime is 20435631457. The next prime is 20435631563. The reversal of 20435631532 is 23513653402.

It is a super-2 number, since 2×20435631532² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994183 + ... + 1014529.

It is an arithmetic number, because the mean of its divisors is an integer number (1497500886).

Almost surely, 2^20435631532 is an apocalyptic number.

It is an amenable number.

20435631532 is a deficient number, since it is larger than the sum of its proper divisors (15504389732).

20435631532 is a wasteful number, since it uses less digits than its factorization.

20435631532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21585 (or 21583 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 20435631532 in words is "twenty billion, four hundred thirty-five million, six hundred thirty-one thousand, five hundred thirty-two".