33155145125 has 32 divisors (see below), whose sum is σ = 42018912000. Its totient is φ = 26114088000.

The previous prime is 33155145073. The next prime is 33155145131. The reversal of 33155145125 is 52154155133.

It is not a de Polignac number, because 33155145125 - 2¹² = 33155141029 is a prime.

It is a super-2 number, since 2×33155145125² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7621451 + ... + 7625799.

It is an arithmetic number, because the mean of its divisors is an integer number (1313091000).

Almost surely, 2^33155145125 is an apocalyptic number.

It is an amenable number.

33155145125 is a deficient number, since it is larger than the sum of its proper divisors (8863766875).

33155145125 is an equidigital number, since it uses as much as digits as its factorization.

33155145125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294 (or 5284 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The spelling of 33155145125 in words is "thirty-three billion, one hundred fifty-five million, one hundred forty-five thousand, one hundred twenty-five".