66702106555150 has 48 divisors (see below), whose sum is σ = 135345415339008. Its totient is φ = 24255172172000.

The previous prime is 66702106555129. The next prime is 66702106555153. The reversal of 66702106555150 is 5155560120766.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66702106555094 and 66702106555103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66702106555153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189976659 + ... + 190327441.

It is an arithmetic number, because the mean of its divisors is an integer number (2819696152896).

Almost surely, 2^{66702106555150} is an apocalyptic number.

66702106555150 is an abundant number, since it is smaller than the sum of its proper divisors (68643308783858).

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

66702106555150 is a wasteful number, since it uses less digits than its factorization.

66702106555150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696537 (or 696532 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 49.

The spelling of 66702106555150 in words is "sixty-six trillion, seven hundred two billion, one hundred six million, five hundred fifty-five thousand, one hundred fifty".