157780068 has 48 divisors (see below), whose sum is σ = 383866560. Its totient is φ = 50377600.

The previous prime is 157780061. The next prime is 157780127. The reversal of 157780068 is 860087751.

It is not an unprimeable number, because it can be changed into a prime (157780061) 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, 43858 + ... + 47318.

It is an arithmetic number, because the mean of its divisors is an integer number (7997220).

Almost surely, 2^157780068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157780068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191933280).

157780068 is an abundant number, since it is smaller than the sum of its proper divisors (226086492).

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

157780068 is a wasteful number, since it uses less digits than its factorization.

157780068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628 (or 3626 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 157780068 is about 12561.0536182281. The cubic root of 157780068 is about 540.3610616835.

The spelling of 157780068 in words is "one hundred fifty-seven million, seven hundred eighty thousand, sixty-eight".