149493187456 has 16 divisors (see below), whose sum is σ = 297818459640. Its totient is φ = 74746593664.

The previous prime is 149493187447. The next prime is 149493187463. The reversal of 149493187456 is 654781394941.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 149493187394 and 149493187403.

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, 583957636 + ... + 583957891.

Almost surely, 2^149493187456 is an apocalyptic number.

149493187456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

149493187456 is a deficient number, since it is larger than the sum of its proper divisors (148325272184).

149493187456 is an equidigital number, since it uses as much as digits as its factorization.

149493187456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167915541 (or 1167915529 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 61.

The spelling of 149493187456 in words is "one hundred forty-nine billion, four hundred ninety-three million, one hundred eighty-seven thousand, four hundred fifty-six".