164951793742 has 4 divisors (see below), whose sum is σ = 247427690616. Its totient is φ = 82475896870.

The previous prime is 164951793703. The next prime is 164951793823. The reversal of 164951793742 is 247397159461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41237948434 + ... + 41237948437.

It is an arithmetic number, because the mean of its divisors is an integer number (61856922654).

Almost surely, 2^164951793742 is an apocalyptic number.

164951793742 is a deficient number, since it is larger than the sum of its proper divisors (82475896874).

164951793742 is an equidigital number, since it uses as much as digits as its factorization.

164951793742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82475896873.

The product of its digits is 11430720, while the sum is 58.

The spelling of 164951793742 in words is "one hundred sixty-four billion, nine hundred fifty-one million, seven hundred ninety-three thousand, seven hundred forty-two".