20662606962 has 12 divisors (see below), whose sum is σ = 44768981790. Its totient is φ = 6887535648.

The previous prime is 20662606961. The next prime is 20662606963. The reversal of 20662606962 is 26960626602.

It is an interprime number because it is at equal distance from previous prime (20662606961) and next prime (20662606963).

It can be written as a sum of positive squares in only one way, i.e., 14448280401 + 6214326561 = 120201^2 + 78831^2 .

It is not an unprimeable number, because it can be changed into a prime (20662606961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 573961287 + ... + 573961322.

Almost surely, 2^20662606962 is an apocalyptic number.

20662606962 is an abundant number, since it is smaller than the sum of its proper divisors (24106374828).

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

20662606962 is a wasteful number, since it uses less digits than its factorization.

20662606962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147922617 (or 1147922614 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 20662606962 in words is "twenty billion, six hundred sixty-two million, six hundred six thousand, nine hundred sixty-two".