20716191435 has 32 divisors (see below), whose sum is σ = 34930632960. Its totient is φ = 10455067008.

The previous prime is 20716191413. The next prime is 20716191443. The reversal of 20716191435 is 53419161702.

It is not a de Polignac number, because 20716191435 - 2⁶ = 20716191371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20716191393 and 20716191402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208504 + ... + 291386.

It is an arithmetic number, because the mean of its divisors is an integer number (1091582280).

Almost surely, 2^20716191435 is an apocalyptic number.

20716191435 is a deficient number, since it is larger than the sum of its proper divisors (14214441525).

20716191435 is a wasteful number, since it uses less digits than its factorization.

20716191435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83787.

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 20716191435 in words is "twenty billion, seven hundred sixteen million, one hundred ninety-one thousand, four hundred thirty-five".