154002125345440 has 48 divisors (see below), whose sum is σ = 376375883937480. Its totient is φ = 59476682890240.

The previous prime is 154002125345399. The next prime is 154002125345491. The reversal of 154002125345440 is 44543521200451.

It can be written as a sum of positive squares in 4 ways, for example, as 89558286498576 + 64443838846864 = 9463524^2 + 8027692^2 .

It is a super-2 number, since 2×154002125345440² (a number of 29 digits) contains 22 as substring.

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 = 154002125345393 and 154002125345402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16595051971 + ... + 16595061250.

Almost surely, 2^{154002125345440} is an apocalyptic number.

154002125345440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154002125345440 is an abundant number, since it is smaller than the sum of its proper divisors (222373758592040).

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

154002125345440 is a wasteful number, since it uses less digits than its factorization.

154002125345440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33190113265 (or 33190113257 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 154002125345440 its reverse (44543521200451), we get a palindrome (198545646545891).

The spelling of 154002125345440 in words is "one hundred fifty-four trillion, two billion, one hundred twenty-five million, three hundred forty-five thousand, four hundred forty".