155146818794 has 12 divisors (see below), whose sum is σ = 255799920642. Its totient is φ = 70521281160.

The previous prime is 155146818793. The next prime is 155146818809. The reversal of 155146818794 is 497818641551.

It is a happy number.

155146818794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 115659167569 + 39487651225 = 340087^2 + 198715^2 .

It is a super-2 number, since 2×155146818794² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155146818793) 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 5 ways as a sum of consecutive naturals, for example, 320551037 + ... + 320551520.

Almost surely, 2^155146818794 is an apocalyptic number.

155146818794 is a deficient number, since it is larger than the sum of its proper divisors (100653101848).

155146818794 is a wasteful number, since it uses less digits than its factorization.

155146818794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641102581 (or 641102570 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 59.

The spelling of 155146818794 in words is "one hundred fifty-five billion, one hundred forty-six million, eight hundred eighteen thousand, seven hundred ninety-four".