2664350156551 has 4 divisors (see below), whose sum is σ = 2664381198600. Its totient is φ = 2664319114504.

The previous prime is 2664350156537. The next prime is 2664350156593. The reversal of 2664350156551 is 1556510534662.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2664350156551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2664350156495 and 2664350156504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664350153551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15391921 + ... + 15564058.

It is an arithmetic number, because the mean of its divisors is an integer number (666095299650).

Almost surely, 2^{2664350156551} is an apocalyptic number.

2664350156551 is a deficient number, since it is larger than the sum of its proper divisors (31042049).

2664350156551 is an equidigital number, since it uses as much as digits as its factorization.

2664350156551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31042048.

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 2664350156551 in words is "two trillion, six hundred sixty-four billion, three hundred fifty million, one hundred fifty-six thousand, five hundred fifty-one".