149988896656 has 15 divisors (see below), whose sum is σ = 290606488753. Its totient is φ = 74993673760.

The previous prime is 149988896633. The next prime is 149988896657. The reversal of 149988896656 is 656698889941.

The square root of 149988896656 is 387284.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 149369882256 + 619014400 = 386484^2 + 24880^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149988896657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1500726 + ... + 1597546.

Almost surely, 2^149988896656 is an apocalyptic number.

149988896656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

149988896656 is the 387284-th square number.

It is an amenable number.

149988896656 is a deficient number, since it is larger than the sum of its proper divisors (140617592097).

149988896656 is an frugal number, since it uses more digits than its factorization.

149988896656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193650 (or 96823 counting only the distinct ones).

The product of its digits is 1612431360, while the sum is 79.

The spelling of 149988896656 in words is "one hundred forty-nine billion, nine hundred eighty-eight million, eight hundred ninety-six thousand, six hundred fifty-six".