20694365433 has 40 divisors (see below), whose sum is σ = 35515223040. Its totient is φ = 11763377280.

The previous prime is 20694365431. The next prime is 20694365449. The reversal of 20694365433 is 33456349602.

20694365433 is a `hidden beast` number, since 2 + 0 + 69 + 43 + 6 + 543 + 3 = 666.

It is not a de Polignac number, because 20694365433 - 2¹ = 20694365431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20694365431) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12753 + ... + 203841.

It is an arithmetic number, because the mean of its divisors is an integer number (887880576).

Almost surely, 2^20694365433 is an apocalyptic number.

It is an amenable number.

20694365433 is a deficient number, since it is larger than the sum of its proper divisors (14820857607).

20694365433 is a wasteful number, since it uses less digits than its factorization.

20694365433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191299 (or 191290 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 45.

The spelling of 20694365433 in words is "twenty billion, six hundred ninety-four million, three hundred sixty-five thousand, four hundred thirty-three".