157275780620 has 48 divisors (see below), whose sum is σ = 390477810240. Its totient is φ = 52063705344.

The previous prime is 157275780617. The next prime is 157275780631. The reversal of 157275780620 is 26087572751.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19364879 + ... + 19372998.

It is an arithmetic number, because the mean of its divisors is an integer number (8134954380).

Almost surely, 2^157275780620 is an apocalyptic number.

157275780620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157275780620 is an abundant number, since it is smaller than the sum of its proper divisors (233202029620).

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

157275780620 is a wasteful number, since it uses less digits than its factorization.

157275780620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38737922 (or 38737920 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 50.

The spelling of 157275780620 in words is "one hundred fifty-seven billion, two hundred seventy-five million, seven hundred eighty thousand, six hundred twenty".