1616537226450 has 48 divisors (see below), whose sum is σ = 4065477310656. Its totient is φ = 425005089600.

The previous prime is 1616537226439. The next prime is 1616537226503. The reversal of 1616537226450 is 546227356161.

It is a super-2 number, since 2×1616537226450² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616537226450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75883117 + ... + 75904416.

It is an arithmetic number, because the mean of its divisors is an integer number (84697443972).

Almost surely, 2^{1616537226450} is an apocalyptic number.

1616537226450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1616537226450 is an abundant number, since it is smaller than the sum of its proper divisors (2448940084206).

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

1616537226450 is a wasteful number, since it uses less digits than its factorization.

1616537226450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151787619 (or 151787614 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 1616537226450 in words is "one trillion, six hundred sixteen billion, five hundred thirty-seven million, two hundred twenty-six thousand, four hundred fifty".