40665214151551 has 8 divisors (see below), whose sum is σ = 46696896633600. Its totient is φ = 35022672474840.

The previous prime is 40665214151537. The next prime is 40665214151561. The reversal of 40665214151551 is 15515141256604.

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 40665214151551 - 2¹⁷ = 40665214020479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40665214151561) 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, 97285201111 + ... + 97285201528.

It is an arithmetic number, because the mean of its divisors is an integer number (5837112079200).

Almost surely, 2^{40665214151551} is an apocalyptic number.

40665214151551 is a deficient number, since it is larger than the sum of its proper divisors (6031682482049).

40665214151551 is a wasteful number, since it uses less digits than its factorization.

40665214151551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194570402669.

The product of its (nonzero) digits is 720000, while the sum is 46.

The spelling of 40665214151551 in words is "forty trillion, six hundred sixty-five billion, two hundred fourteen million, one hundred fifty-one thousand, five hundred fifty-one".