66151005510 has 32 divisors (see below), whose sum is σ = 159649367040. Its totient is φ = 17541717728.

The previous prime is 66151005509. The next prime is 66151005517. The reversal of 66151005510 is 1550015166.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66151005517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6153942 + ... + 6164681.

It is an arithmetic number, because the mean of its divisors is an integer number (4989042720).

Almost surely, 2^66151005510 is an apocalyptic number.

66151005510 is an abundant number, since it is smaller than the sum of its proper divisors (93498361530).

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

66151005510 is a wasteful number, since it uses less digits than its factorization.

66151005510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12318812.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 66151005510 in words is "sixty-six billion, one hundred fifty-one million, five thousand, five hundred ten".