665773151622 has 16 divisors (see below), whose sum is σ = 1409872556592. Its totient is φ = 208870008320.

The previous prime is 665773151551. The next prime is 665773151623. The reversal of 665773151622 is 226151377566.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665773151623) 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, 3263593779 + ... + 3263593982.

It is an arithmetic number, because the mean of its divisors is an integer number (88117034787).

Almost surely, 2^665773151622 is an apocalyptic number.

665773151622 is an abundant number, since it is smaller than the sum of its proper divisors (744099404970).

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

665773151622 is a wasteful number, since it uses less digits than its factorization.

665773151622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527187783.

The product of its digits is 3175200, while the sum is 51.

The spelling of 665773151622 in words is "six hundred sixty-five billion, seven hundred seventy-three million, one hundred fifty-one thousand, six hundred twenty-two".