20669370354 has 12 divisors (see below), whose sum is σ = 44783635806. Its totient is φ = 6889790112.

The previous prime is 20669370341. The next prime is 20669370383. The reversal of 20669370354 is 45307396602.

20669370354 is a `hidden beast` number, since 206 + 6 + 93 + 7 + 0 + 354 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19092883329 + 1576487025 = 138177^2 + 39705^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 574149159 + ... + 574149194.

Almost surely, 2^20669370354 is an apocalyptic number.

20669370354 is an abundant number, since it is smaller than the sum of its proper divisors (24114265452).

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

20669370354 is a wasteful number, since it uses less digits than its factorization.

20669370354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148298361 (or 1148298358 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 20669370354 in words is "twenty billion, six hundred sixty-nine million, three hundred seventy thousand, three hundred fifty-four".