1611499967480 has 128 divisors (see below), whose sum is σ = 3917274480000. Its totient is φ = 593115070464.

The previous prime is 1611499967417. The next prime is 1611499967491. The reversal of 1611499967480 is 847699941161.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 452793941 + ... + 452797499.

It is an arithmetic number, because the mean of its divisors is an integer number (30603706875).

Almost surely, 2^{1611499967480} is an apocalyptic number.

1611499967480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1611499967480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1958637240000).

1611499967480 is an abundant number, since it is smaller than the sum of its proper divisors (2305774512520).

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

1611499967480 is a wasteful number, since it uses less digits than its factorization.

1611499967480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121 (or 6117 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 65.

The spelling of 1611499967480 in words is "one trillion, six hundred eleven billion, four hundred ninety-nine million, nine hundred sixty-seven thousand, four hundred eighty".