6499114153840 has 160 divisors (see below), whose sum is σ = 18846192623616. Its totient is φ = 2024923514880.

The previous prime is 6499114153813. The next prime is 6499114153849. The reversal of 6499114153840 is 483514119946.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6499114153849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16018929 + ... + 16419631.

Almost surely, 2^{6499114153840} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6499114153840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9423096311808).

6499114153840 is an abundant number, since it is smaller than the sum of its proper divisors (12347078469776).

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

6499114153840 is a wasteful number, since it uses less digits than its factorization.

6499114153840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403367 (or 403361 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 6499114153840 in words is "six trillion, four hundred ninety-nine billion, one hundred fourteen million, one hundred fifty-three thousand, eight hundred forty".