155224401512 has 8 divisors (see below), whose sum is σ = 291045752850. Its totient is φ = 77612200752.

The previous prime is 155224401473. The next prime is 155224401523. The reversal of 155224401512 is 215104422551.

It can be written as a sum of positive squares in only one way, i.e., 148806148516 + 6418252996 = 385754^2 + 80114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×155224401512² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9701525087 + ... + 9701525102.

Almost surely, 2^155224401512 is an apocalyptic number.

It is an amenable number.

155224401512 is a deficient number, since it is larger than the sum of its proper divisors (135821351338).

155224401512 is a wasteful number, since it uses less digits than its factorization.

155224401512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19403050195 (or 19403050191 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 155224401512 in words is "one hundred fifty-five billion, two hundred twenty-four million, four hundred one thousand, five hundred twelve".