66122611402 has 8 divisors (see below), whose sum is σ = 99442884096. Its totient is φ = 32974983372.

The previous prime is 66122611397. The next prime is 66122611411. The reversal of 66122611402 is 20411622166.

It is a happy number.

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

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, 43160208 + ... + 43161739.

It is an arithmetic number, because the mean of its divisors is an integer number (12430360512).

Almost surely, 2^66122611402 is an apocalyptic number.

66122611402 is a deficient number, since it is larger than the sum of its proper divisors (33320272694).

66122611402 is a wasteful number, since it uses less digits than its factorization.

66122611402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86322332.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 66122611402 in words is "sixty-six billion, one hundred twenty-two million, six hundred eleven thousand, four hundred two".