1046635421555 has 8 divisors (see below), whose sum is σ = 1262538226944. Its totient is φ = 832924523200.

The previous prime is 1046635421549. The next prime is 1046635421593. The reversal of 1046635421555 is 5551245366401.

It is a happy number.

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

It is not a de Polignac number, because 1046635421555 - 2³⁰ = 1045561679731 is a prime.

It is a super-2 number, since 2×1046635421555² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547975706 + ... + 547977615.

It is an arithmetic number, because the mean of its divisors is an integer number (157817278368).

Almost surely, 2^{1046635421555} is an apocalyptic number.

1046635421555 is a deficient number, since it is larger than the sum of its proper divisors (215902805389).

1046635421555 is a wasteful number, since it uses less digits than its factorization.

1046635421555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095953517.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 1046635421555 in words is "one trillion, forty-six billion, six hundred thirty-five million, four hundred twenty-one thousand, five hundred fifty-five".