2151723060667 has 8 divisors (see below), whose sum is σ = 2178844174800. Its totient is φ = 2124667378944.

The previous prime is 2151723060653. The next prime is 2151723060677. The reversal of 2151723060667 is 7660603271512.

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

It is a cyclic number.

It is not a de Polignac number, because 2151723060667 - 2²³ = 2151714672059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151723060677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16291918 + ... + 16423459.

It is an arithmetic number, because the mean of its divisors is an integer number (272355521850).

Almost surely, 2^{2151723060667} is an apocalyptic number.

2151723060667 is a deficient number, since it is larger than the sum of its proper divisors (27121114133).

2151723060667 is an equidigital number, since it uses as much as digits as its factorization.

2151723060667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32716205.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 2151723060667 in words is "two trillion, one hundred fifty-one billion, seven hundred twenty-three million, sixty thousand, six hundred sixty-seven".