1011657157340 has 48 divisors (see below), whose sum is σ = 2130541636608. Its totient is φ = 403508649984.

The previous prime is 1011657157339. The next prime is 1011657157349. The reversal of 1011657157340 is 437517561101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011657157349) 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, 84985829 + ... + 84997731.

It is an arithmetic number, because the mean of its divisors is an integer number (44386284096).

Almost surely, 2^{1011657157340} is an apocalyptic number.

1011657157340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011657157340 is an abundant number, since it is smaller than the sum of its proper divisors (1118884479268).

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

1011657157340 is a wasteful number, since it uses less digits than its factorization.

1011657157340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23678 (or 23676 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 1011657157340 in words is "one trillion, eleven billion, six hundred fifty-seven million, one hundred fifty-seven thousand, three hundred forty".