162401006251 has 8 divisors (see below), whose sum is σ = 177169011264. Its totient is φ = 147633714120.

The previous prime is 162401006221. The next prime is 162401006279. The reversal of 162401006251 is 152600104261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162401006251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162401006221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371980 + ... + 680566.

It is an arithmetic number, because the mean of its divisors is an integer number (22146126408).

Almost surely, 2^162401006251 is an apocalyptic number.

162401006251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

162401006251 is a deficient number, since it is larger than the sum of its proper divisors (14768005013).

162401006251 is a wasteful number, since it uses less digits than its factorization.

162401006251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356441.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 162401006251 in words is "one hundred sixty-two billion, four hundred one million, six thousand, two hundred fifty-one".