162157788 has 144 divisors (see below), whose sum is σ = 470442336. Its totient is φ = 48522240.

The previous prime is 162157777. The next prime is 162157841. The reversal of 162157788 is 887751261.

It is a happy number.

162157788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517920 + ... + 518232.

Almost surely, 2^162157788 is an apocalyptic number.

162157788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162157788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235221168).

162157788 is an abundant number, since it is smaller than the sum of its proper divisors (308284548).

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

162157788 is a wasteful number, since it uses less digits than its factorization.

162157788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 372 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The square root of 162157788 is about 12734.1190508021. The cubic root of 162157788 is about 545.3131079645.

The spelling of 162157788 in words is "one hundred sixty-two million, one hundred fifty-seven thousand, seven hundred eighty-eight".