1601564151 has 16 divisors (see below), whose sum is σ = 2379115008. Its totient is φ = 949992000.

The previous prime is 1601564147. The next prime is 1601564189. The reversal of 1601564151 is 1514651061.

It is not a de Polignac number, because 1601564151 - 2² = 1601564147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601564051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514750 + ... + 517851.

It is an arithmetic number, because the mean of its divisors is an integer number (148694688).

Almost surely, 2^1601564151 is an apocalyptic number.

1601564151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1601564151 is a deficient number, since it is larger than the sum of its proper divisors (777550857).

1601564151 is a wasteful number, since it uses less digits than its factorization.

1601564151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032662.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 1601564151 is about 40019.5471113805. The cubic root of 1601564151 is about 1169.9881049269.

The spelling of 1601564151 in words is "one billion, six hundred one million, five hundred sixty-four thousand, one hundred fifty-one".