6140553408 has 448 divisors, whose sum is σ = 21559357440. Its totient is φ = 1692057600.

The previous prime is 6140553407. The next prime is 6140553421. The reversal of 6140553408 is 8043550416.

It is a happy number.

6140553408 is a `hidden beast` number, since 61 + 4 + 0 + 553 + 40 + 8 = 666.

It is a super-4 number, since 4×6140553408⁴ (a number of 40 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6140553401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10016910 + ... + 10017522.

Almost surely, 2^6140553408 is an apocalyptic number.

6140553408 is a gapful number since it is divisible by the number (68) 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 6140553408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10779678720).

6140553408 is an abundant number, since it is smaller than the sum of its proper divisors (15418804032).

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

6140553408 is a wasteful number, since it uses less digits than its factorization.

6140553408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 6140553408 is about 78361.6832897303. The cubic root of 6140553408 is about 1831.2002446025.

The spelling of 6140553408 in words is "six billion, one hundred forty million, five hundred fifty-three thousand, four hundred eight".