1655503040 has 56 divisors (see below), whose sum is σ = 3945709152. Its totient is φ = 661606400.

The previous prime is 1655503021. The next prime is 1655503051. The reversal of 1655503040 is 403055561.

It is a junction number, because it is equal to n+sod(n) for n = 1655502994 and 1655503012.

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, 589640 + ... + 592440.

It is an arithmetic number, because the mean of its divisors is an integer number (70459092).

Almost surely, 2^1655503040 is an apocalyptic number.

1655503040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1655503040 is an abundant number, since it is smaller than the sum of its proper divisors (2290206112).

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

1655503040 is a wasteful number, since it uses less digits than its factorization.

1655503040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1655503040 is about 40687.8733777031. The cubic root of 1655503040 is about 1182.9779803626.

The spelling of 1655503040 in words is "one billion, six hundred fifty-five million, five hundred three thousand, forty".