66360052487 has 4 divisors (see below), whose sum is σ = 66361955376. Its totient is φ = 66358149600.

The previous prime is 66360052481. The next prime is 66360052601. The reversal of 66360052487 is 78425006366.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66360052487 - 2¹⁶ = 66359986951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66360052481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898139 + ... + 969212.

It is an arithmetic number, because the mean of its divisors is an integer number (16590488844).

Almost surely, 2^66360052487 is an apocalyptic number.

66360052487 is a deficient number, since it is larger than the sum of its proper divisors (1902889).

66360052487 is a wasteful number, since it uses less digits than its factorization.

66360052487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902888.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 66360052487 in words is "sixty-six billion, three hundred sixty million, fifty-two thousand, four hundred eighty-seven".