2216400692736 has 80 divisors (see below), whose sum is σ = 5905955659824. Its totient is φ = 738634358784.

The previous prime is 2216400692731. The next prime is 2216400692761. The reversal of 2216400692736 is 6372960046122.

It is a super-3 number, since 3×2216400692736³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216400692731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6778386 + ... + 7097838.

Almost surely, 2^{2216400692736} is an apocalyptic number.

It is an amenable number.

2216400692736 is an abundant number, since it is smaller than the sum of its proper divisors (3689554967088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2216400692736 is an equidigital number, since it uses as much as digits as its factorization.

2216400692736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323991 (or 323975 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 2216400692736 in words is "two trillion, two hundred sixteen billion, four hundred million, six hundred ninety-two thousand, seven hundred thirty-six".