150521521401545 has 128 divisors (see below), whose sum is σ = 217337624064000. Its totient is φ = 99981331623936.

The previous prime is 150521521401541. The next prime is 150521521401557. The reversal of 150521521401545 is 545104125125051.

It is not a de Polignac number, because 150521521401545 - 2² = 150521521401541 is a prime.

It is a super-2 number, since 2×150521521401545² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (150521521401541) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8372996597 + ... + 8373014573.

It is an arithmetic number, because the mean of its divisors is an integer number (1697950188000).

Almost surely, 2^{150521521401545} is an apocalyptic number.

It is an amenable number.

150521521401545 is a deficient number, since it is larger than the sum of its proper divisors (66816102662455).

150521521401545 is a wasteful number, since it uses less digits than its factorization.

150521521401545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19112 (or 19098 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 41.

Adding to 150521521401545 its reverse (545104125125051), we get a palindrome (695625646526596).

The spelling of 150521521401545 in words is "one hundred fifty trillion, five hundred twenty-one billion, five hundred twenty-one million, four hundred one thousand, five hundred forty-five".