5551337640 has 128 divisors (see below), whose sum is σ = 16840949760. Its totient is φ = 1463825664.

The previous prime is 5551337629. The next prime is 5551337647. The reversal of 5551337640 is 467331555.

It is not an unprimeable number, because it can be changed into a prime (5551337647) 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, 8579797 + ... + 8580443.

It is an arithmetic number, because the mean of its divisors is an integer number (131569920).

Almost surely, 2^5551337640 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 5551337640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8420474880).

5551337640 is an abundant number, since it is smaller than the sum of its proper divisors (11289612120).

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

5551337640 is a wasteful number, since it uses less digits than its factorization.

5551337640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1347 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 39.

The square root of 5551337640 is about 74507.2992397389. The cubic root of 5551337640 is about 1770.6492814122.

The spelling of 5551337640 in words is "five billion, five hundred fifty-one million, three hundred thirty-seven thousand, six hundred forty".