20061970988 has 6 divisors (see below), whose sum is σ = 35108449236. Its totient is φ = 10030985492.

The previous prime is 20061970949. The next prime is 20061971003. The reversal of 20061970988 is 88907916002.

It is a super-2 number, since 2×20061970988² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2507746370 + ... + 2507746377.

It is an arithmetic number, because the mean of its divisors is an integer number (5851408206).

Almost surely, 2^20061970988 is an apocalyptic number.

It is an amenable number.

20061970988 is a deficient number, since it is larger than the sum of its proper divisors (15046478248).

20061970988 is a wasteful number, since it uses less digits than its factorization.

20061970988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015492751 (or 5015492749 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 20061970988 in words is "twenty billion, sixty-one million, nine hundred seventy thousand, nine hundred eighty-eight".