149905660557 has 8 divisors (see below), whose sum is σ = 201934773376. Its totient is φ = 98906827392.

The previous prime is 149905660537. The next prime is 149905660559. The reversal of 149905660557 is 755066509941.

149905660557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149905660557 - 2¹⁵ = 149905627789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149905660497 and 149905660506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149905660559) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 257569573 + ... + 257570154.

It is an arithmetic number, because the mean of its divisors is an integer number (25241846672).

Almost surely, 2^149905660557 is an apocalyptic number.

It is an amenable number.

149905660557 is a deficient number, since it is larger than the sum of its proper divisors (52029112819).

149905660557 is an equidigital number, since it uses as much as digits as its factorization.

149905660557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515139827.

The product of its (nonzero) digits is 10206000, while the sum is 57.

The spelling of 149905660557 in words is "one hundred forty-nine billion, nine hundred five million, six hundred sixty thousand, five hundred fifty-seven".