115671016021 has 16 divisors (see below), whose sum is σ = 133620062400. Its totient is φ = 98961882880.

The previous prime is 115671016001. The next prime is 115671016061. The reversal of 115671016021 is 120610176511.

It is a cyclic number.

It is not a de Polignac number, because 115671016021 - 2⁵ = 115671015989 is a prime.

It is a super-3 number, since 3×115671016021³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115671016001) 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, 4390530 + ... + 4416796.

It is an arithmetic number, because the mean of its divisors is an integer number (8351253900).

Almost surely, 2^115671016021 is an apocalyptic number.

115671016021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115671016021 is a deficient number, since it is larger than the sum of its proper divisors (17949046379).

115671016021 is a wasteful number, since it uses less digits than its factorization.

115671016021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49844.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 115671016021 in words is "one hundred fifteen billion, six hundred seventy-one million, sixteen thousand, twenty-one".