20667140370 has 48 divisors (see below), whose sum is σ = 56562704640. Its totient is φ = 5221171872.

The previous prime is 20667140369. The next prime is 20667140381. The reversal of 20667140370 is 7304176602.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6041314 + ... + 6044733.

It is an arithmetic number, because the mean of its divisors is an integer number (1178389680).

Almost surely, 2^20667140370 is an apocalyptic number.

20667140370 is an abundant number, since it is smaller than the sum of its proper divisors (35895564270).

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

20667140370 is a wasteful number, since it uses less digits than its factorization.

20667140370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12086079 (or 12086076 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 20667140370 in words is "twenty billion, six hundred sixty-seven million, one hundred forty thousand, three hundred seventy".