149709561672 has 64 divisors (see below), whose sum is σ = 409365135360. Its totient is φ = 45248052800.

The previous prime is 149709561637. The next prime is 149709561707. The reversal of 149709561672 is 276165907941.

It is a happy number.

149709561672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (149709561637) and next prime (149709561707).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639204 + ... + 841427.

It is an arithmetic number, because the mean of its divisors is an integer number (6396330240).

Almost surely, 2^149709561672 is an apocalyptic number.

149709561672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149709561672 is an abundant number, since it is smaller than the sum of its proper divisors (259655573688).

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

149709561672 is a wasteful number, since it uses less digits than its factorization.

149709561672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481034 (or 1481030 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 149709561672 in words is "one hundred forty-nine billion, seven hundred nine million, five hundred sixty-one thousand, six hundred seventy-two".