66034625654 has 8 divisors (see below), whose sum is σ = 100164881880. Its totient is φ = 32646331696.

The previous prime is 66034625641. The next prime is 66034625669. The reversal of 66034625654 is 45652643066.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 66034625599 and 66034625608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185490344 + ... + 185490699.

It is an arithmetic number, because the mean of its divisors is an integer number (12520610235).

Almost surely, 2^66034625654 is an apocalyptic number.

66034625654 is a deficient number, since it is larger than the sum of its proper divisors (34130256226).

66034625654 is a wasteful number, since it uses less digits than its factorization.

66034625654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370981134.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 66034625654 in words is "sixty-six billion, thirty-four million, six hundred twenty-five thousand, six hundred fifty-four".