1662552157 has 8 divisors (see below), whose sum is σ = 1904947200. Its totient is φ = 1421379024.

The previous prime is 1662552131. The next prime is 1662552169. The reversal of 1662552157 is 7512552661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1662552157 - 2⁷ = 1662552029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662552457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302557 + ... + 308002.

It is an arithmetic number, because the mean of its divisors is an integer number (238118400).

Almost surely, 2^1662552157 is an apocalyptic number.

It is an amenable number.

1662552157 is a deficient number, since it is larger than the sum of its proper divisors (242395043).

1662552157 is an equidigital number, since it uses as much as digits as its factorization.

1662552157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610955.

The product of its digits is 126000, while the sum is 40.

The square root of 1662552157 is about 40774.4056609045. The cubic root of 1662552157 is about 1184.6546393971.

The spelling of 1662552157 in words is "one billion, six hundred sixty-two million, five hundred fifty-two thousand, one hundred fifty-seven".