149839241661 has 60 divisors (see below), whose sum is σ = 229634794620. Its totient is φ = 97367961600.

The previous prime is 149839241639. The next prime is 149839241711. The reversal of 149839241661 is 166142938941.

149839241661 is a `hidden beast` number, since 1 + 4 + 9 + 83 + 92 + 416 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18346702500 + 131492539161 = 135450^2 + 362619^2 .

It is a de Polignac number, because none of the positive numbers 2^k-149839241661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149839241598 and 149839241607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149839249661) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 115171711 + ... + 115173011.

It is an arithmetic number, because the mean of its divisors is an integer number (3827246577).

Almost surely, 2^149839241661 is an apocalyptic number.

It is an amenable number.

149839241661 is a deficient number, since it is larger than the sum of its proper divisors (79795552959).

149839241661 is an equidigital number, since it uses as much as digits as its factorization.

149839241661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168 (or 2116 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 149839241661 in words is "one hundred forty-nine billion, eight hundred thirty-nine million, two hundred forty-one thousand, six hundred sixty-one".