6157449216 has 144 divisors (see below), whose sum is σ = 17895903480. Its totient is φ = 2039562240.

The previous prime is 6157449197. The next prime is 6157449241. The reversal of 6157449216 is 6129447516.

6157449216 is a `hidden beast` number, since 6 + 157 + 4 + 492 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3187771 + ... + 3189701.

Almost surely, 2^6157449216 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 6157449216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8947951740).

6157449216 is an abundant number, since it is smaller than the sum of its proper divisors (11738454264).

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

6157449216 is a wasteful number, since it uses less digits than its factorization.

6157449216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132 (or 2109 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 6157449216 is about 78469.4158000428. The cubic root of 6157449216 is about 1832.8782298525.

The spelling of 6157449216 in words is "six billion, one hundred fifty-seven million, four hundred forty-nine thousand, two hundred sixteen".