257116040030 has 32 divisors (see below), whose sum is σ = 468065498400. Its totient is φ = 101678556672.

The previous prime is 257116040029. The next prime is 257116040081. The reversal of 257116040030 is 30040611752.

It is a super-2 number, since 2×257116040030² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257116039975 and 257116040002.

It is a congruent number.

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, 12015881 + ... + 12037259.

It is an arithmetic number, because the mean of its divisors is an integer number (14627046825).

Almost surely, 2^257116040030 is an apocalyptic number.

257116040030 is a deficient number, since it is larger than the sum of its proper divisors (210949458370).

257116040030 is a wasteful number, since it uses less digits than its factorization.

257116040030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34988.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 257116040030 its reverse (30040611752), we get a palindrome (287156651782).

The spelling of 257116040030 in words is "two hundred fifty-seven billion, one hundred sixteen million, forty thousand, thirty".