2664144040155 has 32 divisors (see below), whose sum is σ = 4592170813440. Its totient is φ = 1311108405120.

The previous prime is 2664144040153. The next prime is 2664144040157. The reversal of 2664144040155 is 5510404414662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2664144040153) and next prime (2664144040157).

It is not a de Polignac number, because 2664144040155 - 2¹ = 2664144040153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2664144040153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1903315 + ... + 2991804.

It is an arithmetic number, because the mean of its divisors is an integer number (143505337920).

Almost surely, 2^{2664144040155} is an apocalyptic number.

2664144040155 is a deficient number, since it is larger than the sum of its proper divisors (1928026773285).

2664144040155 is a wasteful number, since it uses less digits than its factorization.

2664144040155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897931.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 2664144040155 in words is "two trillion, six hundred sixty-four billion, one hundred forty-four million, forty thousand, one hundred fifty-five".