1600690090 has 32 divisors (see below), whose sum is σ = 2983398480. Its totient is φ = 617616384.

The previous prime is 1600690079. The next prime is 1600690103. The reversal of 1600690090 is 900960061.

It can be written as a sum of positive squares in 8 ways, for example, as 658384281 + 942305809 = 25659^2 + 30697^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431122 + ... + 434818.

Almost surely, 2^1600690090 is an apocalyptic number.

1600690090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1600690090 is a deficient number, since it is larger than the sum of its proper divisors (1382708390).

1600690090 is a wasteful number, since it uses less digits than its factorization.

1600690090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1600690090 is about 40008.6251950751. The cubic root of 1600690090 is about 1169.7752240659.

The spelling of 1600690090 in words is "one billion, six hundred million, six hundred ninety thousand, ninety".