149626669644 has 72 divisors (see below), whose sum is σ = 398298962880. Its totient is φ = 47230408800.

The previous prime is 149626669637. The next prime is 149626669697. The reversal of 149626669644 is 446966626941.

It is a super-2 number, since 2×149626669644² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1603759 + ... + 1694489.

It is an arithmetic number, because the mean of its divisors is an integer number (5531930040).

Almost surely, 2^149626669644 is an apocalyptic number.

It is an amenable number.

149626669644 is an abundant number, since it is smaller than the sum of its proper divisors (248672293236).

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

149626669644 is a wasteful number, since it uses less digits than its factorization.

149626669644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93171 (or 93166 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 63.

The spelling of 149626669644 in words is "one hundred forty-nine billion, six hundred twenty-six million, six hundred sixty-nine thousand, six hundred forty-four".