155441511142 has 4 divisors (see below), whose sum is σ = 233162266716. Its totient is φ = 77720755570.

The previous prime is 155441511119. The next prime is 155441511143. The reversal of 155441511142 is 241115144551.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×155441511142² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155441511098 and 155441511107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155441511143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38860377784 + ... + 38860377787.

It is an arithmetic number, because the mean of its divisors is an integer number (58290566679).

Almost surely, 2^155441511142 is an apocalyptic number.

155441511142 is a deficient number, since it is larger than the sum of its proper divisors (77720755574).

155441511142 is an equidigital number, since it uses as much as digits as its factorization.

155441511142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77720755573.

The product of its digits is 16000, while the sum is 34.

Adding to 155441511142 its reverse (241115144551), we get a palindrome (396556655693).

The spelling of 155441511142 in words is "one hundred fifty-five billion, four hundred forty-one million, five hundred eleven thousand, one hundred forty-two".