66152361517 has 8 divisors (see below), whose sum is σ = 72174259872. Its totient is φ = 60131804400.

The previous prime is 66152361481. The next prime is 66152361521. The reversal of 66152361517 is 71516325166.

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

It is a cyclic number.

It is not a de Polignac number, because 66152361517 - 2³¹ = 64004877869 is a prime.

It is a super-2 number, since 2×66152361517² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66152362517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230758 + ... + 430759.

It is an arithmetic number, because the mean of its divisors is an integer number (9021782484).

Almost surely, 2^66152361517 is an apocalyptic number.

It is an amenable number.

66152361517 is a deficient number, since it is larger than the sum of its proper divisors (6021898355).

66152361517 is a wasteful number, since it uses less digits than its factorization.

66152361517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670619.

The product of its digits is 226800, while the sum is 43.

The spelling of 66152361517 in words is "sixty-six billion, one hundred fifty-two million, three hundred sixty-one thousand, five hundred seventeen".