20695394170 has 32 divisors (see below), whose sum is σ = 40674467520. Its totient is φ = 7518887040.

The previous prime is 20695394147. The next prime is 20695394183. The reversal of 20695394170 is 7149359602.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20695394170.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40869 + ... + 207511.

It is an arithmetic number, because the mean of its divisors is an integer number (1271077110).

Almost surely, 2^20695394170 is an apocalyptic number.

20695394170 is a deficient number, since it is larger than the sum of its proper divisors (19979073350).

20695394170 is a wasteful number, since it uses less digits than its factorization.

20695394170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167790.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 20695394170 in words is "twenty billion, six hundred ninety-five million, three hundred ninety-four thousand, one hundred seventy".