1601697760818 has 32 divisors (see below), whose sum is σ = 3212165599296. Its totient is φ = 532439500608.

The previous prime is 1601697760813. The next prime is 1601697760823. The reversal of 1601697760818 is 8180677961061.

It is an interprime number because it is at equal distance from previous prime (1601697760813) and next prime (1601697760823).

It is not an unprimeable number, because it can be changed into a prime (1601697760811) 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, 3095880 + ... + 3576012.

It is an arithmetic number, because the mean of its divisors is an integer number (100380174978).

Almost surely, 2^{1601697760818} is an apocalyptic number.

1601697760818 is an abundant number, since it is smaller than the sum of its proper divisors (1610467838478).

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

1601697760818 is a wasteful number, since it uses less digits than its factorization.

1601697760818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481658.

The product of its (nonzero) digits is 6096384, while the sum is 60.

The spelling of 1601697760818 in words is "one trillion, six hundred one billion, six hundred ninety-seven million, seven hundred sixty thousand, eight hundred eighteen".