66203325124 has 6 divisors (see below), whose sum is σ = 115855818974. Its totient is φ = 33101662560.

The previous prime is 66203325119. The next prime is 66203325137. The reversal of 66203325124 is 42152330266.

It can be written as a sum of positive squares in only one way, i.e., 63487873024 + 2715452100 = 251968^2 + 52110^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66203325124.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8275415637 + ... + 8275415644.

Almost surely, 2^66203325124 is an apocalyptic number.

It is an amenable number.

66203325124 is a deficient number, since it is larger than the sum of its proper divisors (49652493850).

66203325124 is a wasteful number, since it uses less digits than its factorization.

66203325124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16550831285 (or 16550831283 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 66203325124 in words is "sixty-six billion, two hundred three million, three hundred twenty-five thousand, one hundred twenty-four".