155400155428 has 24 divisors (see below), whose sum is σ = 311152342592. Its totient is φ = 66524631264.

The previous prime is 155400155381. The next prime is 155400155441. The reversal of 155400155428 is 824551004551.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3117975 + ... + 3167422.

Almost surely, 2^155400155428 is an apocalyptic number.

It is an amenable number.

155400155428 is an abundant number, since it is smaller than the sum of its proper divisors (155752187164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155400155428 is a wasteful number, since it uses less digits than its factorization.

155400155428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286291 (or 6286289 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 40.

Adding to 155400155428 its reverse (824551004551), we get a palindrome (979951159979).

The spelling of 155400155428 in words is "one hundred fifty-five billion, four hundred million, one hundred fifty-five thousand, four hundred twenty-eight".