157066780 has 48 divisors (see below), whose sum is σ = 356215104. Its totient is φ = 57830400.

The previous prime is 157066771. The next prime is 157066781. The reversal of 157066780 is 87660751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157066781) 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 15 ways as a sum of consecutive naturals, for example, 130180 + ... + 131380.

It is an arithmetic number, because the mean of its divisors is an integer number (7421148).

Almost surely, 2^157066780 is an apocalyptic number.

157066780 is a gapful number since it is divisible by the number (10) 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 157066780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178107552).

157066780 is an abundant number, since it is smaller than the sum of its proper divisors (199148324).

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

157066780 is a wasteful number, since it uses less digits than its factorization.

157066780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 157066780 is about 12532.6286149395. The cubic root of 157066780 is about 539.5455481492.

The spelling of 157066780 in words is "one hundred fifty-seven million, sixty-six thousand, seven hundred eighty".