1505664676405 has 16 divisors (see below), whose sum is σ = 1807699161600. Its totient is φ = 1203930889920.

The previous prime is 1505664676391. The next prime is 1505664676421. The reversal of 1505664676405 is 5046764665051.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1505664676405 is a prime.

It is a super-2 number, since 2×1505664676405² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116180316 + ... + 116193274.

It is an arithmetic number, because the mean of its divisors is an integer number (112981197600).

Almost surely, 2^{1505664676405} is an apocalyptic number.

It is an amenable number.

1505664676405 is a deficient number, since it is larger than the sum of its proper divisors (302034485195).

1505664676405 is a wasteful number, since it uses less digits than its factorization.

1505664676405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22764.

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 1505664676405 in words is "one trillion, five hundred five billion, six hundred sixty-four million, six hundred seventy-six thousand, four hundred five".