149451748646 has 32 divisors (see below), whose sum is σ = 233327952000. Its totient is φ = 71708095872.

The previous prime is 149451748643. The next prime is 149451748651. The reversal of 149451748646 is 646847154941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149451748643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11865320 + ... + 11877908.

It is an arithmetic number, because the mean of its divisors is an integer number (7291498500).

Almost surely, 2^149451748646 is an apocalyptic number.

149451748646 is a deficient number, since it is larger than the sum of its proper divisors (83876203354).

149451748646 is a wasteful number, since it uses less digits than its factorization.

149451748646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13856.

The product of its digits is 23224320, while the sum is 59.

The spelling of 149451748646 in words is "one hundred forty-nine billion, four hundred fifty-one million, seven hundred forty-eight thousand, six hundred forty-six".