156816040 has 16 divisors (see below), whose sum is σ = 352836180. Its totient is φ = 62726400.

The previous prime is 156816031. The next prime is 156816061. The reversal of 156816040 is 40618651.

It can be written as a sum of positive squares in 2 ways, for example, as 141181924 + 15634116 = 11882^2 + 3954^2 .

It is a junction number, because it is equal to n+sod(n) for n = 156815993 and 156816011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1960161 + ... + 1960240.

Almost surely, 2^156816040 is an apocalyptic number.

156816040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156816040 is an abundant number, since it is smaller than the sum of its proper divisors (196020140).

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

156816040 is a wasteful number, since it uses less digits than its factorization.

156816040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920412 (or 3920408 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 156816040 is about 12522.6211313766. The cubic root of 156816040 is about 539.2582866752.

It can be divided in two parts, 1568160 and 40, that multiplied together give a square (62726400 = 7920²).

The spelling of 156816040 in words is "one hundred fifty-six million, eight hundred sixteen thousand, forty".