20315526412 has 12 divisors (see below), whose sum is σ = 35563807216. Its totient is φ = 10154438640.

The previous prime is 20315526403. The next prime is 20315526467. The reversal of 20315526412 is 21462551302.

It is a super-2 number, since 2×20315526412² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817368 + ... + 841855.

Almost surely, 2^20315526412 is an apocalyptic number.

It is an amenable number.

20315526412 is a deficient number, since it is larger than the sum of its proper divisors (15248280804).

20315526412 is a wasteful number, since it uses less digits than its factorization.

20315526412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662288 (or 1662286 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 20315526412 in words is "twenty billion, three hundred fifteen million, five hundred twenty-six thousand, four hundred twelve".