150621507111649 has 32 divisors (see below), whose sum is σ = 175829973120000. Its totient is φ = 128973293370432.

The previous prime is 150621507111631. The next prime is 150621507111679. The reversal of 150621507111649 is 946111705126051.

It is not a de Polignac number, because 150621507111649 - 2¹⁷ = 150621506980577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150621507111629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5231897347 + ... + 5231926135.

It is an arithmetic number, because the mean of its divisors is an integer number (5494686660000).

Almost surely, 2^{150621507111649} is an apocalyptic number.

It is an amenable number.

150621507111649 is a deficient number, since it is larger than the sum of its proper divisors (25208466008351).

150621507111649 is a wasteful number, since it uses less digits than its factorization.

150621507111649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43742 (or 43728 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 150621507111649 in words is "one hundred fifty trillion, six hundred twenty-one billion, five hundred seven million, one hundred eleven thousand, six hundred forty-nine".