1551460435240 has 32 divisors (see below), whose sum is σ = 3490870320000. Its totient is φ = 620569180224.

The previous prime is 1551460435229. The next prime is 1551460435243. The reversal of 1551460435240 is 425340641551.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1551460435193 and 1551460435202.

It is not an unprimeable number, because it can be changed into a prime (1551460435243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289101 + ... + 2182819.

It is an arithmetic number, because the mean of its divisors is an integer number (109089697500).

Almost surely, 2^{1551460435240} is an apocalyptic number.

1551460435240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1551460435240 is an abundant number, since it is smaller than the sum of its proper divisors (1939409884760).

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

1551460435240 is a wasteful number, since it uses less digits than its factorization.

1551460435240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937129 (or 937125 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 1551460435240 in words is "one trillion, five hundred fifty-one billion, four hundred sixty million, four hundred thirty-five thousand, two hundred forty".