70998160 has 40 divisors (see below), whose sum is σ = 168917760. Its totient is φ = 27737472.

The previous prime is 70998157. The next prime is 70998163. The reversal of 70998160 is 6189907.

It is an interprime number because it is at equal distance from previous prime (70998157) and next prime (70998163).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (70998163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6880 + ... + 13759.

It is an arithmetic number, because the mean of its divisors is an integer number (4222944).

Almost surely, 2^70998160 is an apocalyptic number.

70998160 is the 6880-th pentagonal number.

It is an amenable number.

70998160 is an abundant number, since it is smaller than the sum of its proper divisors (97919600).

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

70998160 is a wasteful number, since it uses less digits than its factorization.

70998160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20695 (or 20689 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 70998160 is about 8426.0405885564. The cubic root of 70998160 is about 414.0781978669.

The spelling of 70998160 in words is "seventy million, nine hundred ninety-eight thousand, one hundred sixty".