61662062954 has 8 divisors (see below), whose sum is σ = 94992907908. Its totient is φ = 29997760320.

The previous prime is 61662062947. The next prime is 61662062963. The reversal of 61662062954 is 45926026616.

It can be written as a sum of positive squares in 2 ways, for example, as 41584589929 + 20077473025 = 203923^2 + 141695^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×61662062954² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61662062899 and 61662062908.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 416635487 + ... + 416635634.

Almost surely, 2^61662062954 is an apocalyptic number.

61662062954 is a deficient number, since it is larger than the sum of its proper divisors (33330844954).

61662062954 is a wasteful number, since it uses less digits than its factorization.

61662062954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833271160.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 61662062954 in words is "sixty-one billion, six hundred sixty-two million, sixty-two thousand, nine hundred fifty-four".