155400016 has 10 divisors (see below), whose sum is σ = 301087562. Its totient is φ = 77700000.

The previous prime is 155399957. The next prime is 155400017. The reversal of 155400016 is 610004551.

It can be written as a sum of positive squares in only one way, i.e., 154753600 + 646416 = 12440^2 + 804^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 155400016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155400017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4856235 + ... + 4856266.

Almost surely, 2^155400016 is an apocalyptic number.

155400016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155400016 is a deficient number, since it is larger than the sum of its proper divisors (145687546).

155400016 is an equidigital number, since it uses as much as digits as its factorization.

155400016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9712509 (or 9712503 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 155400016 is about 12465.9542755459. The cubic root of 155400016 is about 537.6302374869.

Adding to 155400016 its reverse (610004551), we get a palindrome (765404567).

The spelling of 155400016 in words is "one hundred fifty-five million, four hundred thousand, sixteen".